The Camels disappeared here just before the start of WWII. They had wandered NE from their release point and wandered into the nation. The Navajo are good hunters and had hungry children.
We do have wild burros all over here. From the Spanish Priests that came after Coronado to save all the heathen's souls. I hope they were better at saving souls than keeping track of their burros...
Not sure about Burros...But I like churros. Yum! Lol.